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26-10-2019
Mathematics

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Katie solved the equation by completing the square x^2+12x-7=0 which equation shows one of the steps Katie could have taken to complete the square

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26-10-2019

Answer:

x^2+12x-7-6^2+6^2=0

(x+6)^2-7-36=0

(x+6)^2-43=0

x= -6 Plus or minus root 43

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